^ he said 6800GT not 9800GT hang
Anyway, the requirements say
GeForce 6800 GT* or higher / ATI 9800 PRO
Meaning it certainly likes ATI cards better. Of course, it's not like the FX 5000 series didn't have it's problems, but anyway.....
The 3200 should be a little faster than a 9800 Pro (still slower than a 6800GT), but again you're going to be playing on the absolute lowest settings.